Novel scoring system and algorithm for classifying chronic rhinosinusitis: the <scp>JESREC</scp> Study

We subdivided CRSwNP in non-ECRS, mild, moderate, and severe ECRS according to our algorithm. This classification was significantly correlated with prognosis. It is notable that this algorithm may give useful information to clinicians in the refractoriness of CRS before ESS or biopsy.